COMP: Update ITKv4 and VTKv6 to include fix for multiple call to find_package

// --------------
VTKv6 changes:

$ git shortlog b55dad7..ea7cdc4 --no-merges
Matt McCormick (1):
      Reset VTK_MODULES_REQUESTED to all modules with multiple calls.

// --------------
ITKv4 changes:

$ git shortlog 8012adeb..f5e429a --no-merges
Arnaud Gelas (1):
      COMP: use find_package(VTK COMPONENTS) for LevelSetsv4Visualization

Bill Lorensen (2):
      ENH: Specify required VTK modules
      ENH: Modify WikiExamples remote config

Cory Quammen (1):
      COMP: Avoid including VTK_USE_FILE within ITK

Jean-Christophe Fillion-Robin (1):
      COMP: Wiki examples require additional vtk modules

Kent Williams (1):
      COMP: use find_package(VTK COMPONENTS) to specify just needed VTK Components

Matthew McCormick (6):
      COMP: Remove unused typedef's in VtkGlue.
      COMP: Add VTK Python module when wrapping ITKVtkGlue.
      COMP: Remove unused typedefs in LevelSetsv4Visualization.
      COMP: Add missing VTK module dependency for LevelSetsv4Visualization.
      BUG: Configure against VTK 5.
      BUG: Reset ITK_MODULES_REQUESTED to all modules with multiple calls.

Michka Popoff (1):
      STYLE: Remove old cmake < 2.8.4 specific code

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23830 3bd1e089-480b-0410-8dfb-8563597acbee